Rank ScoresWrite a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no "holes" between ranks.IdScore13.5023.6534.0043.8554.0063.65For example, given the above Scores table, your query should generate the following report (order by highest score):ScoreRank4.0014.0013.8523.6533.6533.504Optionsselect Score over(order by Score desc) to Rank from Scores;select Score, dense_rank() as Rank from Scores;select Score, dense_rank() over(order by Score desc)select Score, dense_rank() over(order by Score desc) as Rank from Scores;
Question
Rank ScoresWrite a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no "holes" between ranks.IdScore13.5023.6534.0043.8554.0063.65For example, given the above Scores table, your query should generate the following report (order by highest score):ScoreRank4.0014.0013.8523.6533.6533.504Optionsselect Score over(order by Score desc) to Rank from Scores;select Score, dense_rank() as Rank from Scores;select Score, dense_rank() over(order by Score desc)select Score, dense_rank() over(order by Score desc) as Rank from Scores;
Solution
The correct SQL query to rank scores, even when there are ties, would be:
SELECT Score, DENSE_RANK() OVER(ORDER BY Score DESC) AS Rank
FROM Scores;
This query uses the DENSE_RANK() function to assign ranks to each unique score in the Scores table. The OVER(ORDER BY Score DESC) clause specifies that the ranking should be done in descending order of scores. So, higher scores get lower ranks. In case of a tie, DENSE_RANK() assigns the same rank to both scores, and there are no gaps in the ranking numbers.
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